Israel's chastisement by the Assyrian rod: the destruction of the rod

In chapter 9: 8 the Spirit, having given the great leading facts as to
Messiah, Immanuel, resumes the general history of Israel without any
special introduction of the Messiah till towards the end. This
prophecy closes with chapter 12. Although the pride of Ephraim is
mentioned, yet Jacob or Israel is looked at as a whole. The different
phases of chastisement or of distress are in verses 8-12, 13-17,
18-21, and chapter 10: 1-4. The Assyrian then re-appears, as being
properly the rod of Jehovah; and it is announced, that when God shall
have accomplished all that He had determined with respect to Zion (an
accomplishment not here revealed), He will break the rod that He has
used, and then the remnant shall seek Jehovah, and shall "stay
upon" Him. This is the final act of the great drama of God's
dealings with respect to Israel. There is a consumption decreed of
God for the land. But when at length the Assyrian lifts up his hand,
Jehovah comes in and smites him. And the indignation of Jehovah, and
His anger against Israel, which till now had never been turned away,
will come to an end in the destruction of this rod that magnified
itself against the Lord who used it. Verse 25 is in contrast with
chapter 9: 12, 17, 21, and chapter 10: 4. Sennacherib was a type of
this. But it is a prophecy of the destruction of the Assyrian in the
last days, when the indignation against Israel shall cease.

Messiah and the millennial reign

Consequently we have, in chapters 11, 12, the Messiah and His reign,
the source of the millennial blessing of the people of God. The first
verses of chapter 11 give His character; afterwards it is the effect
of His reign.